Safety device for ballistic missiles

Claim 1

IN AN INERTIAL GUIDANCE SYSTEM FOR BALLISTIC VEHICLES, A PLATFORM CARRYING A PLURALITY OF ACCELEROMETERS, GYROSCOPIC MEANS INCLUDING A PLURALITY OF GYROSCOPES FOR STABILIZING SAID PLATFORM IN SPACE ABOUT THREE MUTUALLY PREPENDICULAR INERTIAL AXES, PICKOFF MEANS ON ONE OF SAID GYROSCOPES ADAPTED TO PRODUCE AN OUTPUT SIGNAL INDICATIVE OF THE RELATIVE ANGULAR DISPLACEMENT OF SAID GYRO AND SAID PLATFORM ABOUT AN AXIS FIXED TO SAID PLATFORM, TORQUING MEANS ON SAID GYRO ADAPTED TO CAUSE SAID GYRO TO PRECESS ABOUT SAID FIXED AXIS UPON ENERGIZATION THEREOF, ELECTRICAL CONNECTIONS BETWEEN SAID PICKOFF MEANS AND SAID TORQUING MEANS WHEREBY SAID TORQUING MEANS IS ACTUATED TO REDUCE SAID DISPLACEMENT TO ZERO, CIRCUIT MEANS RESPONSIVE TO AN INPUT SIGNAL OF PREDETERMINED MAGNITUDE, DOUBLE INTEGRATING MEANS HAVING AN INPUT AND AN OUTPUT, SAID INPUT BEING CONNECTED TO THE OUTPUT OF SAID PICKOFF DEVICE AND SAID OUTPUT BEING CONNECTED TO THE INPUT OF SAID CIRCUIT MEANS.